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41. 发明申请

WO2014011595A1 CODEC ARCHITECTURE FOR MULTIPLE LAYER VIDEO CODING 审中-公开
标题翻译：多层视频编码的CODEC架构
公开(公告)号：WO2014011595A1
公开(公告)日：2014-01-16
申请号：PCT/US2013/049662
申请日：2013-07-09
申请人： VID SCALE, INC.
发明人： YE, Yan , McCLELLAN, George, W. , HE, Yong , XIU, Xiaoyu , HE, Yuwen , DONG, Jie , BAL, Can , RYU, Eun
IPC分类号： H04N7/26
CPC分类号： H04N19/70 , H04N19/117 , H04N19/157 , H04N19/30 , H04N19/31 , H04N19/33 , H04N19/36
摘要： Systems, methods, and instrumentaliiies are provided to implement video coding system (VCS). The VCS may be configured to receive a video signal, which may include one or more layers (e.g., a base layer (BL) and/or one or more enhancement layers (ELs)). The VCS may be configured to process a BL picture into an inter-layer reference (ILR) picture, e.g., using picture level inter-layer prediction process. The VCS may be configured to select one or both of the processed IL R picture or an enhancement layer (EL) reference picture. The selected reference picture(s) may comprise one of the EL reference picture, or the ILR picture. The VCS may be configured to predict a current EL picture using one or more of the selected ILR picture or the EL reference picture. The VCS may be configured to store the processed ILR picture in an EL decoded picture buffer (DPB).
摘要翻译：提供了系统，方法和仪器来实现视频编码系统（VCS）。 VCS可以被配置为接收可以包括一个或多个层（例如，基本层（BL）和/或一个或多个增强层（EL））的视频信号。 VCS可以被配置为将BL图像处理为层间参考（ILR）图像，例如使用图像级间层预测处理。 VCS可以被配置为选择处理的IL R图像或增强层（EL）参考图片中的一个或两个。所选择的参考图片可以包括EL参考图片或ILR图片之一。 VCS可以被配置为使用所选择的ILR图像或EL参考图像中的一个或多个来预测当前EL图像。 VCS可以被配置为将经处理的ILR图像存储在EL解码图像缓冲器（DPB）中。

42. 发明申请

WO2021061764A1 SWITCHING LOGIC FOR BI-DIRECTIONAL OPTICAL FLOW 审中-公开
公开(公告)号：WO2021061764A1
公开(公告)日：2021-04-01
申请号：PCT/US2020/052207
申请日：2020-09-23
申请人： VID SCALE, INC.
发明人： CHEN, Wei , HE, Yuwen , YANG, Hua
IPC分类号： H04N19/176 , H04N19/577 , H04N19/70 , H04N19/513
摘要： An apparatus may be configured to determine a reference picture listed in a first reference picture list and a reference picture listed in a second reference picture list, for a coding block. The apparatus may be configured to determine whether to perform bi-directional optical flow (BDOF) for the coding block based at least in part on whether a distance between a picture associated with the coding block and the reference picture listed in the first reference picture list differs from a distance between the picture associated with the coding block and the reference picture listed in the second reference picture list. The apparatus may be configured to decode the coding block based on the determination of whether to perform BDOF for the coding block.

43. 发明申请

WO2021003325A1 METHODS AND APPARATUS FOR KERNEL TENSOR AND TREE PARTITION BASED NEURAL NETWORK COMPRESSION FRAMEWORK 审中-公开
公开(公告)号：WO2021003325A1
公开(公告)日：2021-01-07
申请号：PCT/US2020/040587
申请日：2020-07-02
申请人： VID SCALE, INC.
发明人： YANG, Hua , LI, Duanshun , TIAN, Dong , HE, Yuwen
IPC分类号： G06N3/02 , H04N19/96
摘要： A method of encoding or decoding a video comprising a current picture, a first reference picture, and a weight tensor associated with a trained neural network (NN) model are provided. The method includes generating any number of kernel tensors, input channels and output channels associated with the weight tensor, each kernel tensor being associated with any of: a layer type, an input signal type, and a tree partition type, and each kernel tensor including weight coefficients, generating, for each of the any number of kernel tensors, tree partitions for any of a coding tree unit (CTU), a coding unit (CU), a prediction unit (PU), and a transform unit (TU) according to respective tree partition types associated with each of the any number of kernel tensors, and generating a compressed representation of the trained NN model by compressing and coding the any number of kernel tensors

44. 发明申请

WO2020185910A1 INTRA SUB-PARTITIONS IN VIDEO CODING 审中-公开
公开(公告)号：WO2020185910A1
公开(公告)日：2020-09-17
申请号：PCT/US2020/022121
申请日：2020-03-11
申请人： VID SCALE, INC.
发明人： YANG, Hua , VANAM, Rahul , HE, Yuwen
IPC分类号： H04N19/11 , H04N19/593 , H04N19/105 , H04N19/176
摘要： Intra sub-partitions (ISP) may be enabled for a current block, for example, based on an ISP indication. The block may be partitioned into multiple sub-partitions, and a sub-partition may belong to a prediction unit (PU). A sub-partition width for the current block and a minimum prediction block width may be obtained. A PU corresponding to a current sub-partition may be determined based on the sub-partition width and the minimum prediction block width. For example, when the sub-partition width is less than the minimum prediction block width, the PU may include multiple sub-partitions. In examples, the minimum prediction block width may be four samples. Reference samples may be determined, and the PU may be predicted using the reference samples.

45. 发明申请

WO2020185747A1 METHODS AND SYSTEMS FOR POST-RECONSTRUCTION FILTERING 审中-公开
公开(公告)号：WO2020185747A1
公开(公告)日：2020-09-17
申请号：PCT/US2020/021839
申请日：2020-03-10
申请人： VID SCALE, INC.
发明人： WU, Shilin , HANHART, Philippe , HE, Yuwen
IPC分类号： H04N19/82 , H04N19/48 , H04N19/117 , H04N19/60 , H04N19/50 , H04N19/18 , H04N19/182 , H04N19/157
摘要： Systems and methods are described for video coding using adaptive Hadamard filtering of reconstructed blocks, such as coding units. In some embodiments, where Hadamard filtering might otherwise encompass samples outside the current coding unit, extrapolated samples are generated for use in the filtering. Reconstructed samples from neighboring blocks may be used in the filtering where available (e.g. in a line buffer). In some embodiments, different filter strengths are applied to different spectrum components in the transform domain. In some embodiments, filter strength is based on position of filtered samples within the block. In some embodiments, filter strength is based on the prediction mode used to code the current block.

46. 发明申请

WO2020142279A1 COMBINED INTER AND INTRA PREDICTION 审中-公开
公开(公告)号：WO2020142279A1
公开(公告)日：2020-07-09
申请号：PCT/US2019/068008
申请日：2019-12-20
申请人： VID SCALE, INC.
发明人： XIU, Xiaoyu , HE, Yuwen , LUO, Jiancong
IPC分类号： H04N19/103 , H04N19/70 , H04N19/176
摘要： Systems, methods, and instrumentalities are disclosed for a combined inter and intra prediction, A video coding device may receive a motion vector difference (MMVD) mode indication that indicates whether MMVD mode is used to generate inter prediction of a coding unit (CU). The video coding device may receive a combined inter merge/intra prediction (CUP) indication, for example, when the MMVD mode indication indicates that MMVD mode is not used to generate the inter prediction of the CU, The video coding device may determine whether to use triangle merge mode for the CU, for example, based on the MMVD mode indication and/or the CUP indication. On a condition that the CUP indication indicates that CUP is applied for the CU or the MMVD mode indication indicates that MMVD mode is used to generate the inter prediction, the video coding device may disable the triangle merge mode for the CU.

47. 发明申请

WO2019147628A1 GENERALIZED BI-PREDICTION FOR VIDEO CODING WITH REDUCED CODING COMPLEXITY 审中-公开
公开(公告)号：WO2019147628A1
公开(公告)日：2019-08-01
申请号：PCT/US2019/014691
申请日：2019-01-23
申请人： VID SCALE, INC.
发明人： ZHANG, Yan , XIU, Xiaoyu , HE, Yuwen , YE, Yan
IPC分类号： H04N19/577 , H04N19/31 , H04N19/573
CPC分类号： H04N19/577 , H04N19/31 , H04N19/573
摘要： Exemplary embodiments include systems and methods for coding a video comprising a plurality of pictures including a current picture, a first reference picture, and a second reference picture, where each picture includes a plurality of blocks. In one method, for at least a current block in the current picture, a number of available bi-prediction weights is determined based at least in part on a temporal layer and/or a quantization parameter of the current picture. From among available bi-prediction weights a pair of weights are identified. Using the identified weights, the current block is then predicted as a weighted sum of a first reference block in the first reference picture and a second reference block in the second reference picture. Encoding techniques are also described for efficient searching and selection of a pair of bi-prediction weights to use for prediction of a block.

48. 发明申请

WO2019143602A1 MOTION COMPENSATED BI-PREDICTION BASED ON LOCAL ILLUMINATION COMPENSATION 审中-公开
公开(公告)号：WO2019143602A1
公开(公告)日：2019-07-25
申请号：PCT/US2019/013623
申请日：2019-01-15
申请人： VID SCALE, INC.
发明人： XIU, Xiaoyu , HE, Yuwen , YE, Yan , BANDYOPADHYAY, Saurav
IPC分类号： H04N19/105 , H04N19/176 , H04N19/137 , H04N19/583 , H04N19/577
CPC分类号： H04N19/105 , H04N19/137 , H04N19/176 , H04N19/577 , H04N19/583
摘要： Systems, methods, and Instrumentalities are described herein for calculating local Illumination compensation (LIC) parameters for bi-predicted coding unit (CU). The LIC parameters may be used to generate adjusted samples for the current CU and to address local illumination changes that may exist among temporal neighboring pictures. LIC parameters may be calculated based on bi-predicted reference template samples and template samples for a current CU. Bi-predicted reference template samples may be generated based on reference template samples neighboring temporal reference CUs. For example, the bi-predicted reference template samples may be generated based on averaging the reference template samples. The reference template samples may correspond to template samples for the current CU. A CU may be or may include a coding block and/or a sub-block that may be derived by dividing the coding block.

49. 发明申请

WO2019143551A1 ADAPTIVE FRAME PACKING FOR 360-DEGREE VIDEO CODING 审中-公开
公开(公告)号：WO2019143551A1
公开(公告)日：2019-07-25
申请号：PCT/US2019/013436
申请日：2019-01-14
申请人： VID SCALE, INC.
发明人： HANHART, Philippe , HE, Yuwen , YE, Yan
IPC分类号： H04N19/597
摘要： A video coding device may be configured to periodically select the frame packing configuration ( e.g., face layout and/or face rotations parameters) associated with a RAS, The device may receive a plurality of pictures, which may each comprise a plurality of faces. The pictures may be grouped Into a plurality of RASs. The device may select a frame packing configuration with the lowest cost for a first RAS. For example, the cost of a frame packing configuration may be determined based on the first picture of the first RAS. The device may select a frame packing configuration for a second RAS. The frame packing configuration for the first RAS may be different than the frame packing configuration for the second RAS. The frame packing configuration for the first RAS and the frame packing configuration for the second RAS may be signaled in the video bitstream.

50. 发明申请

WO2019089874A1 MULTI-TYPE TREE CODING 审中-公开
公开(公告)号：WO2019089874A1
公开(公告)日：2019-05-09
申请号：PCT/US2018/058620
申请日：2018-11-01
申请人： VID SCALE, INC.
发明人： HE, Yuwen , DUANMU, Fanyi , XIU, Xiaoyu , YE, Yan
IPC分类号： H04N19/96 , H04N19/119 , H04N19/70 , H04N19/463 , H04N19/14 , H04N19/176
CPC分类号： H04N19/119 , H04N19/14 , H04N19/176 , H04N19/463 , H04N19/70 , H04N19/96
摘要： A block may be identified. The block may be partitioned into one or more (e.g., two) sibling nodes (e.g., sibling nodes BO and B1 ). A partition direction and a partition type for the block may be determined. If the partition type for the block is binary tree (BT), one or more (e.g., two) partition parameters may be determined for sibling node BO. A partition parameter (e.g., a first partition parameter) may be determined for sibling node B1. A decoder may determine whether to receive an indication of a second partition parameter for B1 based on, for example, the partition direction for the block, the partition type for the block, and the first partition parameter for B1. The decoder may derive the second partition parameter based on, for example, the partition direction and type for the block, and the first partition parameter for B1.

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